| 摘要 |
<p>Storage batteries, particularly those of the lead-acid type, are preheated electrically by subjecting the electrode plates of the battery to an inductive alternating field which induces electric current in the plates. The frequency of the inductive field preferably is within the range from about 250 Hz. to 1,500 Hz. The intensity of the field is reduced or the heating field is terminated upon a sufficient rise in plate temperature.</p> |
